Observation information
- date-obs: 2025-05-09
- time-obs: 04:26:14.293100000
- date-end: 2025-05-09
- time-end: 06:24:06.279700000
- obs_id: C09_011T06_9000006468
- exposure: 4960.11278355
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T06_9000006468_51994cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51994cztM0_level2_quad_clean.evt
|
Size (bytes) | 760,017,600 | 91,103,040 |
Size | 724.8 MB
| 86.9 MB
|
Events in quadrant A | 5,166,785 | 602,697 |
Events in quadrant B | 4,308,485 | 691,699 |
Events in quadrant C | 6,434,177 | 561,456 |
Events in quadrant D | 11,676,870 | 409,663 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20097 | 1 |
B | 0 | 17753 | 0 |
C | 0 | 24159 | 0 |
D | 0 | 39610 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7071 | 452 | 6.392307% |
B | 7072 | 156 | 2.205882% |
C | 7072 | 924 | 13.065611% |
D | 7072 | 2494 | 35.265837% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 7071 | 7071 | 407 | 407 | 5.76% | 5.76% |  |
B | 7072 | 7072 | 99 | 99 | 1.40% | 1.40% |  |
C | 7072 | 7072 | 816 | 816 | 11.54% | 11.54% |  |
D | 7072 | 7072 | 2532 | 2532 | 35.80% | 35.80% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 5 | 243 | 796729 | 4532.78 | 704 | 686 | 175.6 |
A | 4 | 95 | 345959 | 1966.03 | 704 | 686 | 175.6 |
A | 7 | 64 | 344405 | 1957.18 | 704 | 686 | 175.6 |
B | 4 | 206 | 253753 | 1660.01 | 716 | 690 | 152.4 |
B | 10 | 128 | 160863 | 1050.68 | 716 | 690 | 152.4 |
B | 0 | 172 | 118871 | 775.23 | 716 | 690 | 152.4 |
C | 15 | 224 | 2195038 | 11813.37 | 664 | 658 | 185.8 |
C | 4 | 5 | 496519 | 2669.45 | 664 | 658 | 185.8 |
C | 13 | 3 | 430299 | 2312.96 | 664 | 658 | 185.8 |
D | 6 | 42 | 3876188 | 22460.42 | 608 | 580 | 172.6 |
D | 12 | 16 | 2341554 | 13566.71 | 608 | 580 | 172.6 |
D | 12 | 17 | 1018175 | 5897.29 | 608 | 580 | 172.6 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |